Home / 40,767.48-61,140.12-11,178.27

Finding the Fourth Proportional to 40,767.48, 61,140.12 and 11,178.27

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Solution

The fourth proportional to 40,767.48, 61,140.12 and 11,178.27 is: 16,764.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,767.48 : 61,140.12 = 11,178.27 : x
  2. Step 2: Convert to fraction form
    40,767.48/61,140.12 = 11,178.27/x
  3. Step 3: Cross multiply
    40,767.48x = 61,140.12 × 11,178.27
  4. Step 4: Simplify right side
    40,767.48x = 683,440,769.19
  5. Step 5: Solve for x
    x = 683,440,769.19/40,767.48
  6. Step 6: Final answer
    x = 16,764.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.